Which of the diagrams correctly displays a+b=c using the parallelogram method

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor